Common Problems

Debian 11 — gummi — vulnerability — patch and remediation guide — diagnosis and fix on Debian 11

Debian 11 — gummi — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 June 2022 Affected versions: Debian 11 (bullseye) 📖 ~4 min read  •  Source: Debian Security Tracker Related CVEs: CVE-2015-7758 Upstream summary: Gummi 0.6.5 allows local users to write to arbitrary files via a symlink attack on a temporary dot file that uses the name of an […]

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AlmaLinux 8 — abrt-java-connector — vulnerability — patch and remediation guide — diagnosis and fix on AlmaLinux 8

AlmaLinux 8 — abrt-java-connector — vulnerability — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: AlmaLinux 8 📖 ~4 min read  •  Source: AlmaLinux ALSA ALBA-2019:3487 Upstream summary: For detailed information on changes in this release, see the AlmaLinux Release Notes linked from the References section. Table of contents Symptom & Impact Environment & Reproduction Root Cause […]

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Ubuntu 22.04 — opensaml — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 22.04

Ubuntu 22.04 — opensaml — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 June 2022 Affected versions: Ubuntu 22.04 (jammy) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-7364-1 Related CVEs: https://launchpad.net/bugs/2103420 Upstream summary: Alexander Tan discovered that the OpenSAML C++ library was susceptible to forging of signed SAML messages. An attacker could possibly use this issue to […]

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Ubuntu 16.04 — linux-snapdragon — multiple vulnerabilities (20 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 16.04

Ubuntu 16.04 — linux-snapdragon — multiple vulnerabilities (20 CVEs) — patch and remediation guide

🟠 High   ⏱ 15–60 min  Last verified: 29 June 2022 Affected versions: Ubuntu 16.04 (xenial) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-4916-2 Related CVEs: https://launchpad.net/bugs/1924611 CVE-2021-29154 CVE-2021-3493 CVE-2015-1350 CVE-2017-16644 CVE-2017-5967 CVE-2018-13095 CVE-2019-16231  +12 more Upstream summary: USN-4916-1 fixed vulnerabilities in the Linux kernel. Unfortunately, the fix for CVE-2021-3493 introduced a memory […]

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Ubuntu 20.04 — php-dompdf — multiple vulnerabilities (5 CVEs) — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — php-dompdf — multiple vulnerabilities (5 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 29 June 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6277-1 Related CVEs: CVE-2014-5011 CVE-2014-5012 CVE-2014-5013 CVE-2021-3838 CVE-2022-2400 Upstream summary: It was discovered that Dompdf was not properly validating untrusted input when processing HTML content under certain circumstances. An attacker […]

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Ubuntu 20.04 — pypy3 — vulnerability — patch and remediation guide — diagnosis and fix on Ubuntu 20.04

Ubuntu 20.04 — pypy3 — vulnerability — patch and remediation guide

🟢 Low   ⏱ 5–15 min  Last verified: 29 June 2022 Affected versions: Ubuntu 20.04 (focal) 📖 ~4 min read  •  Source: Ubuntu Security Notice USN-6524-1 Related CVEs: CVE-2022-37454 Upstream summary: Nicky Mouha discovered that PyPy incorrectly handled certain SHA-3 operations. An attacker could possibly use this issue to cause PyPy to crash, resulting in […]

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openSUSE Tumbleweed — python36-lxml — multiple vulnerabilities (2 CVEs) — patch and remediation guide — diagnosis and fix on openSUSE Tumbleweed

openSUSE Tumbleweed — python36-lxml — multiple vulnerabilities (2 CVEs) — patch and remediation guide

🟡 Medium   ⏱ 10–30 min  Last verified: 25 May 2026 Affected versions: openSUSE Tumbleweed 📖 ~4 min read  •  Source: SUSE advisory openSUSE-SU-2022:0803-1 (see also SUSE bugzilla) Related CVEs: CVE-2020-27783 CVE-2021-28957 Upstream summary: A XSS vulnerability was discovered in python-lxml's clean module. The module's parser didn't properly imitate browsers, which caused different behaviors between […]

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Oracle Linux 8 — LibRaw — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — LibRaw — vulnerability — patch and remediation guide (ELSA-2024-2994)

🟡 Medium   ⏱ 10–30 min  Last verified: 29 June 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2024-2994 Related CVEs: CVE-2021-32142 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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Oracle Linux 8 — postgresql:10 — vulnerability — patch and remediation guide — diagnosis and fix on Oracle Linux 8

Oracle Linux 8 — postgresql:10 — vulnerability — patch and remediation guide (ELSA-2022-4805)

🟠 High   ⏱ 15–60 min  Last verified: 29 June 2022 Affected versions: Oracle Linux 8 📖 ~4 min read  •  Source: ELSA advisory ELSA-2022-4805 Related CVEs: CVE-2022-1552 Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance […]

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